Ask:

How can changes in an environment affect the deer population?


Standards:


Science:

SPI 0307.5.2 Classify organisms as thriving, threatened, endangered, or extinct.

Math:

3.NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Clear Targets:

  • I can add and subtract numbers within 1,000.
  • I can estimate and round to the nearest 10.
  • I can explain the impact humans have on an animal population.
  • I can classify animals as thriving, threatened, endangered, or extinct.

Prerequisites:

  • Know vocabulary of thriving, threatened, endangered, and extinct
  • Add and subtract
  • Solve word problems involving addition and subtraction
  • Be able to round to the nearest 10
  • Understand the value of base-10 blocks
  • Understand place value

Vocabulary:


Math: Join, separate, part, whole, addition, subtraction, place value
Science: thriving, threatened, endangered, extinct

SCIENCE

Close Read

“Threatened, Endangered, and Extinct” article. Students will become familiarized with the vocabulary. Additional close reads are available on the Wiki page if needed.

MATH

Basic Structures for Addition and Subtraction

(a) Join - Result Unknown; Change Unknown; Start Unknown
(b) Separate – Result Unknown; Change Unknown; Start Unknown
(c) Part-part-whole – Whole Unknown; Part Unknown
(d) Compare – Difference Unknown; Larger Unknown; Smaller Unknown

Model

(I do, We do):


In Montgomery County, 241 deer are hit each year by cars. How many deer will be hit in the next 3 years? Round your answer to the nearest 10.

How many more deer will be hit in 4 years than in 3 years?

Independent (You Do):


In Davidson County, 176 deer are hit each year by cards. How many deer will be hit in the next 4 years? Round your answer to the nearest 10.

Compare your answers. How many more deer are hit in Montgomery County than Davidson County?

Explain why there are more deer hit in Montgomery County than Davidson County. How do humans impact animal populations? How does this relate to populations that are thriving, threatened, endangered, or extinct?


Math Task (formative assessment)


The Montgomery County Sheriff’s Department reported 295 deer crash counts in the year 2008. Davidson County reported 195 deer crash counts that same year. About how many more deer crash counts were reported in Montgomery County than in Davidson County? Write an equation to show your work.

Josie explained that in the next 3 years there will be about 600 deer crash counts reported in Montgomery County. Do you agree or disagree with Josie? Explain your answer using words and a picture or equation.

Downloadable Resources: