Grade 4 - Measurement Unit
Standards covered:
- 4.5 Algebraic reasoning
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4.5C
Use models to determine the formulas for the perimeter of a rectangle (l + w + l + w or 2l + 2w), including the special form for perimeter of a square (4s) and the area of a rectangle (l x w).
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4.5D
Solve problems related to perimeter and area of rectangles where dimensions are whole numbers.
- 4.8 Geometry and measurement
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4.8A
Identify relative sizes of measurement units within the customary and metric systems.
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4.8B
Convert measurements within the same measurement system, customary or metric, from a smaller unit into a larger unit or a larger unit into a smaller unit when given other equivalent measures represented in a table.
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4.8C
Solve problems that deal with measurements of length, intervals of time, liquid volumes, mass, and money using addition, subtraction, multiplication, or division as appropriate.
The Measurement Unit involves strong connections between attributes that can be measured (distance, time, capacity, mass, and area), formula building (algebraic reasoning), and the four operations. Questions to answer may include:
- How does knowing the relative sizes of measurement units help to estimate measures? How does estimation help to determine the reasonableness of a measurement?
- How are the four operations useful in quantifying attributes that can be measured?
- What is a formula? What variables are involved in finding area? How does the formula for finding area differ from the formula for finding perimeter? How can you explain this?
Summative Assessment Task
Students determine all the possible ways Mrs. Martinez can put up fencing around her garden, and which way will give her the most space for the garden..
Students determine all the possible bulletin board sizes a principal could order to fit a 48 square foot area.
Students determine how many four ounce weights are needed on a balance scale to equal a five-pound geode.
Instructional Tasks/Formative Assessments
Given some facts about African elephants, students determine the weight of a full-grown African elephant in tons. Students also determine how many tons of food an African elephant usually eats in eight days.
Given the time it takes Jeff to make seven car parts, students determine at what time Jeff will have made a total of 56 car parts, if he starts at 10:00 a.m.
Students determine how many times a day a dad and his son must fill their water bottles to drink the recommended daily amount of water.
Given an area of 200 square meters, students determine all the possible dimensions for a rectangular-shaped garden for the Morgan family.
Students determine all the possible dimensions for a sandbox frame and determine the frame that provides the most space for holding sand.
Given a list of activities and the time it takes to complete each activity, students determine the earliest time William can arrive at the movie theater to meet his friends.
Students determine how many one-yard lengths of metal strips Xeno needs to buy to make a new xylophone.
The N/A classification refers to TEKS Standards that cannot be assessed through problem solving.
For this reason, tasks have not been included for these particular standards.
K.7A K.7B K.9B K.9C K.9D