Embedded Files
Unit 4
Length:
Measurement, Addition and Subtraction, and Line Plots
Lesson 20:
Measure in Inches & Centimeters
Content Objectives
🎯 I can understand that the lengths of objects can be measured by using different standard units.
🎯 I can represent and measure the lengths of objects using different tools, such as inch and centimeter rulers.
🎯 I can compare measuring the length of an object in inches with measuring the length of an object in centimeters.
2.MD.A.1 Priority
Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.
Prior Knowledge
Count fluently from 0 to 10.
Understand that a model can represent a length.
Measure length with nonstandard units.
Teachers, you'll need to keep in mind that by projecting or printing these slides and pdfs, the actual sizes of things will change. You may need to change numbers on the fly or, better yet, have objects ready to actually measure! 📏
Seesaw Activity
Self-correcting Assessment
Seesaw Activity
Self-checking activity with nonfiction read-along highlighting words
Lesson 21:
Measure in Feet & Meters
Content Objectives
🎯 I can choose a tool for measuring the length of a given object.
🎯 I can measure lengths by using rulers, yardsticks, meter sticks, and measuring tapes.
🎯 I can use a ruler repeatedly to measure a length.
2.MD.A.1 Priority
Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.
Prior Knowledge
Understand that a model can represent a length.
Understand that objects can be measured with different units.
Add multiples of 10.
Lesson 21 Session 1Lesson 21 Session 2Lesson 21 Session 3Lesson 21 Session 4Self-Checking & Assessment Seesaw Activity
Session 2 Fluency Practice
Lesson Quiz with rubric
copy pdf to print & go
Lesson 22:
Understand Measurement with Different Units
Content Objectives
🎯 I can compare lengths measured in different units.
🎯 I understand the relationship between feet and inches and between feet and yards.
🎯 I understand the relationship between centimeters and inches and between centimeters and meters.
🎯 I can explore how the number of units in a measurement is related to the size of the units used.
2.MD.A.2 Supporting
Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen.
Prior Knowledge
Measure lengths in inches, feet, yards, centimeters, and meters.
Seesaw Activity
Seesaw Activity
Seesaw Activity
Lesson 23:
Estimate and Measure Length
Content Objectives
🎯 I can estimate length in inches, feet, centimeters, and meters.
🎯 I can use benchmark objects when estimating.
2.MD.A.3 Supporting
Estimate lengths using units of inches, feet, centimeters, and meters.
Prior Knowledge
Measure lengths in inches and centimeters.
Add numbers less than 10.
Seesaw Activity
Seesaw Activity
Seesaw Activity
Lesson 24:
Compare Lengths
Content Objectives
🎯 I can compare the length of objects by determining which measure is greater than or less than the other.
🎯 I can use addition and subtraction to compare lengths, finding how much greater or less the measure of one object is than the other.
2.MD.A.4 Supporting
Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.
Prior Knowledge
Add and subtract within 20.
Measure in standard units of measure.
Use measuring tools to measure to the nearest unit.
Seesaw Activity Coming
Seesaw Activity Coming
Seesaw Activity Coming
Lesson 25:
Add & Subtract Lengths
Content Objectives
🎯 I can use addition and subtraction to solve problems involving lengths.
🎯 I can recognize the importance of working within a single unit when adding or subtracting lengths.
🎯 I can interpret and apply models that represent measurement problems involving addition and subtraction.
2.MD.B.5 Supporting
Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
Prior Knowledge
Add and subtract within 100.
Apply concepts of fact families.
Understand addition and subtraction situations involving adding to, taking from, putting together, taking apart, and comparing.
Measure in centimeters and inches.
Lesson 26:
Add & Subtract on a Number Line
Content Objectives
🎯 I can represent a whole number as a length from 0 on a number line.
🎯 I can use a number line to represent and solve addition problems.
🎯 I can use a number line to represent and solve subtraction problems.
🎯 I can use a number line to solve addition and subtraction word problems.
2.MD.B.6 Supporting
Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1,
2..., and represent whole-number sums and differences within
100 on a number line diagram.
Prior Knowledge
Add and subtract within 100.
Understand how to use an open number line to add and subtract.
Understand adding to, taking from, putting together, taking apart, and comparing situations.
Measure in centimeters and inches.
Lesson 27:
Read and Make Line Plots
Content Objectives
🎯 I can interpret marks on a line plot as data.
🎯 I can understand that the numbers on a ruler or number line can be used to represent a
given length.
🎯 I can represent data on a line plot.
2.MD.D.9 Supporting
Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.
Prior Knowledge
Know how to measure to the nearest inch, foot, centimeter, and meter.
Differentiate among and compare lengths in inches, feet, centimeters, and meters.
Understand that a number line is a series of intervals organized on a line.
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