LESSON TITLE
CERCA QUESTION
Homeostasis Science
RESOURCES
How does the human body maintain homeostasis?
• Build Background Knowledge https://www.pinterest.com/thinkcerca /homeostasis • CERCA Framework • Vocabulary Routine • Speaking and Listening Routines
Homeostasis: The Greatest Achievement How does homeostasis maintain glucose levels? What happens when those systems malfunction?
Introduce the CERCA Question
1
Connect 1
Online
Small group
Offline
Individual activity
Activity time period
Speaking and listening activity
Audio
En | Sp
Available in English and Spanish
En | Sp
Introduce the concept of homeostasis. Explain that glucose is blood sugar, and that the body tries to maintain homeostasis in the body’s glucose levels. When someone has diabetes, their system malfunctions, or does not work normally. Have students discuss other ways in which the body works to maintain homeostasis.
Have students log in to ThinkCERCA and click into this lesson.
LEVEL 3-4 Expanding
LEVEL 3-4 Expanding
LEVEL 3-4 Expanding
Ask students what normal internal human temperature is. Discuss what happens to this internal temperature changes when a person is in cold or hot conditions. ASK: Does external temperature change human internal temperature? Support language acquisition using the sentence frame: External temperature [does / does not] change human internal temperature.
Read the overview aloud and discuss vocabulary. Then read the writing prompt aloud for students before they answer.
Assign vocabulary words to small groups, or to partners. For small groups, assign a word and have them map it out on the whiteboard. When they are finished they can take a minute to explain it while classmates copy the map down. For partner work, have mixed ability pairs create maps for all assigned words in their notebooks.
Use the Thumb-O-Meter routine before having students work in groups and after to assess which words they still need to work on. NOTE: Some students will need support for additional words not
listed on the student support page. Weave them into the instruction.
Complete Step 1: Connect.
ASK: Why do you think human internal temperature [changes / remains constant]? Support language acquisition using the sentence frame: I think human internal temperature [changes / remains constant] because ______________.
INTRODUCE
Introduce Vocabulary
Whole group
After the routine have students add the focus words to their word notebooks.
LEVEL 4-5 Bridging
LEVEL 4-5 Bridging
LEVEL 4-5 Bridging
Ask students to consider whether being in hot and cold conditions affects inner body temperature. Have them try to explain their reasoning.
Complete Step 1: Connect.
Have students work in pairs to write their own definition of the word in English. Next, have them brainstorm an image or mental picture to illustrate each word.
Have students describe their bodies’ physical reactions to heat and cold. Explore why the body reacts in these ways, and how these reactions might help the body maintain its inner temperature.
After the routine have students add the focus words to their word notebooks.
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CERCA SET
READING CCSS.RST.9-10.4 WRITING CCSS.WHST.9-10.1
Introduce the Summary
En | Sp
2
Read
3
Engage with the Text
Remind students that this is a summary for the passage they will read. Point out the Vocabulary as you read.
Have students read the text, using Vocabulary from the student support page as appropriate.
NOTE: If you have concerns that your students are struggling with comprehension, you may wish to work with them on Step 4: Summarize before Step 3: Engage with the Text.
LEVEL 3-4 Expanding
LEVEL 3-4 Expanding
LEVEL 3-4 Expanding
Have students read the Spanish version on the student support page, if applicable, before you read the summary aloud and have students follow along.
Read comprehension questions with students before they begin reading the passage. Complete Step 2: Read. Discuss comprehension questions. Point out key vocabulary words in the text, especially as they are relevant to finding answers.
LEVEL 4-5 Bridging Ask a student to read aloud the summary in English to practice their fluency.
LEVEL 4-5 Bridging Complete Step 2: Read. Discuss comprehension questions. Point out key vocabulary words in the text, especially as they are relevant to finding answers.
Model highlighting the text for students. Complete Step 3: Engage with the Text. Use the following sentence frames to discuss the highlights students made. ________________________ is evidence that your body maintains a stable internal environment. The example of climbing a mountain is used to show how ___________________. The hypothalamus is responsible for ________________.
LEVEL 4-5 Bridging Complete Step 3: Engage with the Text. Discuss the highlighting students did. Ask students to share their highlights and notes, and use the following sentence stems to support student engagement in the conversation. ________________________ and _________________ are evidence that your body maintains a stable internal environment.
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READ
The example of climbing a mountain is used to show how ___________________, starting with _______ and ending with ___________________.
4
Summarize
Prepare students to write a CERCA by having them summarize the text.
5
Build Your Argument
Practice creating a CERCA together using the CERCA graphic organizer (online or offline) and the leveled frames below and on the student support pages. Remind students that some of their evidence can come from their highlighting work. NOTE: You may wish to have students orally respond to the CERCA question using a Listening and Speaking Routine instead of writing a response.
LEVEL 3-4 Expanding
LEVEL 3-4 Expanding
Complete a summary of the article together using either the suggested sentence frames below or the stems in the product. Encourage students to use Vocabulary from the lesson.
Use the following sentence frames to complete the CERCA graphic organizer. Claim Under normal conditions, homeostasis [maintains / does not maintain] glucose levels in the body. Reason This is true because the body controls glucose levels according to __________. Evidence One example of this is the way in which with initial movement, the body gets its energy from _____________, but once that is used up ________________________. Reasoning This shows how ____________________________.
Complete Step 4: Summarize.
Complete Step 5: Build Your Argument.
LEVEL 4-5 Bridging
LEVEL 4-5 Bridging
Complete Step 4: Summarize.
Have students share their thoughts with the group.
Review the summaries to ensure that all students understand the big ideas of the passage. Encourage students to use Vocabulary from the lesson.
Use the following sentence frames to complete the CERCA graphic organizer. Claim Under normal circumstances, homeostasis [maintains / does not maintain] glucose levels in the body Reason because ______________________. Evidence One example of this is the way in which with initial movement, the body gets its energy _______, but then _____________________________. Reasoning This shows how ____________________________ by ___________________. Evidence When these systems break down _______________________________. Reasoning This shows that _______________________________________.
DRAFT
Have students complete the graphic organizer with at least one more piece of evidence and associated reasoning. Assist as needed. Complete Step 5: Build Your Argument.
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Use the following sentence frames to create a summary. This article explains the process involved in _________________ by _________________. It describes how when this process fails, __________________. It provides a breakdown of the different characteristics of _______________ and ________________.
6
Create Your CERCA
Have students write their CERCA in the lesson online so that you can provide feedback and monitor growth. NOTE: Remind students that they can use the Copy all button to move their work into the text box.
Complete Speaking and Listening Activities Complete a whole group speaking and listening activity with all students who completed the grade level lesson. Prompt students to use the vocabulary from the passage in the activity.
LEVEL 3-4 Expanding
LEVEL 3-4 Expanding
Use the responses students made in the graphic organizer to model writing in response to the CERCA question.
Do the Give One, Get One, Move On routine activity with students.
Have students reread their draft. Then have them submit to complete Step 6: Write Your CERCA.
LEVEL 4-5 Bridging Have students write their CERCA. Provide support as necessary. Remind students that they can use vocabulary words as they write.
LEVEL 4-5 Bridging Do the Back-to-Back and Face-to-Face routine with students.
Use this sentence frame to help students conclude their CERCA: Under normal conditions, homeostasis does a(n) [excellent / poor ] job of maintaining the body’s glucose levels, however this system [does / does not] function properly when ______ or in the bodies of people with type 1 diabetes.
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WRITE AND DISCUSS
Have students add a conclusion and then reread their draft. Then have them submit to complete Step 6: Write Your CERCA.
LESSON CERCA QUESTION
Homeostasis: The Greatest Achievement How does homeostasis maintain glucose levels? What happens when those systems malfunction?
Vocabulary condition (noun): the physical or mental state of a person or animal diabetes (noun): a disease in which people do not produce a chemical called insulin effectively and must limit their sugar intake endeavors (noun) attempts to achieve goals endocrine system (noun): the system that secretes hormones and chemical products glucose (noun): blood sugar glycogen (noun): stored glucose homeostasis (noun): the tendency of a system, including human, to maintain an internal stability hormones (noun): a chemical that is a messenger for body systems hypoglycemia (noun): low blood sugar in the bloodstream hypothalamus (noun): a region of the brain that controls body temperature, thirst, hunger and other systems insulin (noun): a hormone produced in the pancreas that regulates blood sugar levels
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Vocabulary continued nervous system (noun): the system of nerves in the body that sends the messages that control movement and feeling between the brain and other parts of the body neurons (noun): cells that carry messages between the brain and other parts of the body pancreas (noun): a long flat gland in your belly that helps you body digest food predisposed (verb): liable or inclined to a specific condition regulate (verb): set or adjust the amount or rate of something secrete (verb): produce a liquid stores (noun): large amounts or supplies of things that are kept for future use summit (noun): the highest point of a mountain type 1 diabetes (noun): a disease in which people do not produce insulin type 2 diabetes (noun): a disease in which people’s bodies do not use insulin properly
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LESSON TITLE
Homeostasis: The Greatest Achievement
CERCA QUESTION
How does homeostasis maintain glucose levels? What happens when those systems malfunction? ¿Cómo ayuda la homeostasis a mantener una temperatura corporal adecuada? ¿Qué sucede cuando este sistema no funciona bien?
Vocabulary
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condition
condición
(noun): the physical or mental state of a person or animal
(sustantivo): estado físico o mental de una persona o un animal
diabetes
diabetes
(noun): a disease in which people do not produce a chemical called insulin effectively and must limit their sugar intake
(sustantivo): una enfermedad en la cual la gente no produce una sustancia llamada insulina y debe limitar su ingesta de azúcar
endeavors
esfuerzos
(noun) attempts to achieve goals
(sustantivo): intentos por lograr un objetivo
endocrine system
sistema endocrino
(noun): the system that secretes hormones and chemical products
(sustantivo): el sistema que secreta hormonas y productos químicos
glucose
glucosa
(noun): blood sugar
(sustantivo): azúcar en la sangre
glycogen
glucógeno
(noun): stored glucose
(sustantivo): glucosa almacenada
homeostasis
homeostasis
(noun): the tendency of a system, including human, to maintain an internal stability
(sustantivo): la tendencia de un sistema, incluyendo humanos, de mantener una estabilidad interna
hormones
hormonas
(noun): a chemical that is a messenger for body systems
(sustantivo): un químico que envía mensajes a los sistemas del cuerpo
Vocabulary
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continued
hypoglycemia
hipoglucemia
(noun): low blood sugar in the bloodstream
(sustantivo): poca azúcar en el torrente sanguíneo
hypothalamus
hipotálamo
(noun): a region of the brain that controls body temperature, thirst, hunger and other systems
(sustantivo): una región del cerebro que controla la temperatura corporal, la sed, el hambre y otros sistemas
insulin
insulina
(noun): a hormone produced in the pancreas that regulates blood sugar levels
(sustantivo): hormona producida en el páncreas que regula los niveles de azúcar en la sangre
nervous system
sistema nervioso
(noun) the system of nerves in the body that sends the messages that control movement and feeling between the brain and other parts of the body
(sustantivo): sistema de nervios en el cuerpo que envía mensajes que controlan el movimiento y la sensación entre el cerebro y otras partes del cuerpo
neurons
neuronas
(noun): cells that carry messages between the brain and other parts of the body
(sustantivo): células que llevan mensajes entre el cerebro y otras partes del cuerpo
pancreas
páncreas
(noun): a long flat gland in your belly that helps your body digest food
(sustantivo): una glándula alargada y plana en tu vientre que ayuda al cuerpo a digerir la comida
predisposed
predispuesta
(verb): liable or inclined to a specific condition
(verbo): que tiende a una condición específica
regulate
regular
(verb): set or adjust the amount or rate of something
(verbo): controlar la cantidad, el grado o la tasa de algo
Vocabulary
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continued
secrete
secretar
(verb): produce a liquid
(verbo): producir un líquido
stores
almacenaje
(noun): large amounts or supplies of things that are kept for future use
(sustantivo): grandes cantidades que se guardan para el uso futuro
summit
cumbre
(noun): the highest point of a mountain
(sustantivo): el punto más alto de una montaña
type 1 diabetes
diabetes tipo 1
(noun): a disease in which people do not produce insulin
(sustantivo): una enfermedad por la cual las personas no producen insulina
type 2 diabetes
diabetes tipo 2
(noun): a disease in which people’s bodies do not use insulin properly
(sustantivo): una enfermedad por la cual las personas no utilizan la insulina adecuadamente
LESSON TITLE
Homeostasis: The Greatest Achievement
CERCA QUESTION
How does homeostasis maintain glucose levels? What happens when those systems malfunction? ¿Cómo ayuda la homeostasis a mantener una temperatura corporal adecuada? ¿Qué sucede cuando este sistema no funciona bien?
Summary Your body is always working hard to keep a stable internal environment. This process, called homeostasis, is what helps your body adjust to different environments and to the different demands you place on it. Homeostasis explains how your blood sugar levels adapt to differing needs from one moment to the next. However, when your body runs out of its store of glucose, homeostasis starts breaking down. The process of homeostasis is also not able to keep blood sugar at proper levels in the bodies of people with type 1 diabetes.
Tu cuerpo siempre está trabajando para mantener su ambiente interno estable. Este proceso, llamado homeostasis, es lo que ayuda a tu cuerpo a ajustarse a diferentes ambientes y a las diferentes demandas que le haces. La homeostasis explica cómo tus niveles de azúcar en la sangre pueden adaptarse a las diferentes necesidades de un momento al otro. Sin embargo, cuando tu cuerpo tiene poca glucosa, la homeostasis comienza a fallar. El proceso de homeostasis tampoco es capaz de mantener niveles apropiados de azúcar en la sangre de personas con diabetes tipo 1.
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LESSON CERCA QUESTION
Homeostasis: The Greatest Achievement How does homeostasis maintain glucose levels? What happens when those systems malfunction?
Summary Your body is always working hard to keep a stable internal environment. This process, called homeostasis, is what helps your body adjust to different environments and to the different demands you place on it. Homeostasis explains how your blood sugar levels adapt to differing needs from one moment to the next. However, when your body runs out of its store of glucose, homeostasis starts breaking down. The process of homeostasis is also not able to keep blood sugar at proper levels in the bodies of people with type 1 diabetes.
© 2016 ThinkCERCA.com, Inc.
LESSON CERCA QUESTION
Homeostasis: The Greatest Achievement How does homeostasis maintain glucose levels? What happens when those systems malfunction?
4
Summarize This article explains the process involved in _________________ by ________________________. It describes how when this process fails, __________________. It provides a breakdown of the different characteristics of _____________________ and ___________________.
5
Build Your Argument
Claim Under normal conditions, homeostasis [maintains / does not maintain] glucose levels in the body.
Reason This is true because the body controls glucose levels according to _____________________________________________. Evidence One example of this is the way in which with initial movement, the body gets its energy from ____________________________________________________, but once that is used up, _____________________________________________________.
Reasoning This shows how ______________________________________.
© 2016 ThinkCERCA.com, Inc.
LESSON CERCA QUESTION
Homeostasis: The Greatest Achievement How does homeostasis maintain glucose levels? What happens when those systems malfunction?
5
Build Your Argument Claim Under normal circumstances, homeostasis [maintains / does not maintain] glucose levels in the body Reason because ______________________. Evidence One example of this is the way in which with initial movement, the body gets its energy ___________________________________, but then _____________________________________________________. Reasoning This shows how ____________________________ by _________________________________________________________.
Evidence When these systems break down ___________________________________________________________. Reasoning This shows that __________________________________________________________.
6
Create Your CERCA
Under normal conditions, homeostasis does a(n) [excellent / poor ] job of maintaining the body’s glucose levels, however this system [does / does not] function properly when ___________________ or in the bodies of people with type 1 diabetes.
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