nbt3-earn-that-bike
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School
Capella University *
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Course
6015
Subject
Mathematics
Date
Feb 20, 2024
Type
docx
Pages
2
Uploaded by cramsey491
Formative Instructional and Assessment Tasks
NC.3.NBT.3
Earn That Bike Domain
Number and Operations in Base Ten
Cluster
Generalize place value understanding for multi-digit numbers.
Standard(s)
NC.3.NBT.3
Use concrete and pictorial models, based on place value and the properties of
operations, to find the product of a one-digit whole number by a multiple of 10 in the range 10–90.
Materials
Paper, pencils, copy of problem
Task
Elana makes $30 every time she helps her aunt watch her baby on a Saturday. Elana wants to purchase a new bike with the money she earns. The new bike is $240. How many weeks will she have to help her aunt to earn enough money to purchase a new bike?
Use words, pictures, or equations to show how she can figure out how long it will take.
Rubric
Level I
Not Yet
Level II
Progressing
Level III
Meets Expectation
Student’s work is off-task, incomplete, or not accurate.
Student states 8 weeks but can
not explain work.
OR
Student has shown some justification of appropriate reasoning, but it does not lead to the correct answer.
Student states that it will take 8 weeks.
Student accurately explains:
3 x X = 24 or
30 x X = 240 and that 3 x 8= 24 or
30 x 8 = 240
Student explains how answer was computed in words, pictures or equations.
Standards for Mathematical Practice
1. Makes sense and perseveres in solving problems.
2. Reasons abstractly and quantitatively.
3. Constructs viable arguments and critiques the reasoning of others.
4. Models with mathematics.
5. Uses appropriate tools strategically.
6. Attends to precision.
7. Looks for and makes use of structure.
8. Looks for and expresses regularity in repeated reasoning.
NC DEPARTMENT OF PUBLIC INSTRUCTION
THIRD GRADE
Formative Instructional and Assessment Tasks
Earn That Bike
Elana makes $30 every time she helps her aunt watch her baby on a Saturday. Elana
wants to purchase a new bike with the money she earns. The new bike is $240. How many weeks will she have to help her aunt to earn enough money to purchase a new bike? Use words, pictures, or equations to show how she can figure out how long it will take.
NC DEPARTMENT OF PUBLIC INSTRUCTION
THIRD GRADE
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