## EngageNY - Module 2

## Module 2 uses place value to unify measurement, rounding skills, and the standard algorithms for addition and subtraction. The module begins with plenty of hands-on experience using a variety of tools to build practical measurement skills and conceptual understanding of metric and time units. Estimation naturally surfaces through application; this transitions students into rounding. In the module’s final topics students round to assess whether or not their solutions to problems solved using the standard algorithms are reasonable.

**Topic A: Time Measurement and Problem Solving**

__Math News Parent Resource - Courtesy of Lafayette Schools__

**Lesson 1: Explore time as a continuous measurement using a stopwatch.******

__Video - Module 2 Lesson 1__

Lesson 2: Count by fives and ones on the number line as a strategy to tell time to the nearest minute on the clock.

Lesson 2: Count by fives and ones on the number line as a strategy to tell time to the nearest minute on the clock.

__Video - Module 2 Lesson 2__

Lesson 3: Solve word problems involving time intervals within 1 hour by counting backward and forward using the number line and clock.

Lesson 3: Solve word problems involving time intervals within 1 hour by counting backward and forward using the number line and clock.

__Video - Module 2 Lesson 3__

__Lesson 4:____Solve word problems involving time intervals within 1 hour by counting backward and forward using the number line and clock.__****

__Video - Module 2 Lesson 4__

__Lesson 5: Solve word problems involving time intervals within 1 hour by adding and subtracting on the number line.__

**Video - Module 2 Lesson 5****Topic B: Measuring Weight and Liquid Volume in Metric Units**

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__Lesson 6: Build and decompose a kilogram to reason about the size and weight of 1 kilogram, 100 grams, 10 grams, and 1 gram.__

__Video - Module 2 Lesson 6__

__Lesson 7: Develop estimation strategies by reasoning about the weight in kilograms of a series of familiar objects to establish mental benchmark measures.__

**Video - Module 2 Lesson 7**

**Lesson 8: Solve one-step word problems involving metric weights within 100 and estimate to reason about solutions.**

__Video - Module 2 Lesson 8__

__Lesson 9: Decompose a liter to reason about the size of 1 liter, 100 milliliters, 10 milliliters, and 1 milliliter.__

__Video - Module 2 Lesson 9__

**Lesson 10:**Estimate and measure liquid volume in liters and milliliters using the vertical number line.

**Video - Module 2 Lesson 10**

__Lesson 11: Solve mixed word problems involving all four operations with grams, kilograms, liters, and milliliters given in the same units.__

**Video - Module 2 Lesson 11**

**Topic C: Rounding to the Nearest Ten & Hundred**

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**Lesson 12:**Round two-digit measurements to the nearest ten on the vertical number line.

__Video - Module 2 Lesson 12______

**Lesson 13:****Round two- and three-digit numbers to the nearest ten on the vertical number line.**

**Video - Module 2 Lesson 13**

**Lesson 14: Round to the nearest hundred on the vertical number line.**

__Video - Module 2 Lesson 14__**Topic D: Two- and Three-Digit Measurement Addition Using the Standard Algorithm**

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**Lesson 15:****Add measurements using the standard algorithm to compose larger units once.**

**Video - Module 2 Lesson 15**

__Lesson 16: Add measurements using the standard algorithm to compose larger units twice.__

**Video - Module 2 Lesson 16**

__Lesson 17: Estimate sums by rounding and apply to solve measurement word problems.__****

__Video - Module 2 Lesson 17__

____**Topic E: Two- and Three-Digit Measurement Subtraction Using the Standard Algorithm**

__Math News Parent Resource - Courtesy of Lafayette Schools__

__Lesson 18: Decompose once to subtract measurements including three-digit minuends with zeros in the tens or ones place.__

__Video - Module 2 Lesson 18__

__Lesson 19: Decompose twice to subtract measurements including three-digit minuends with zeros in the tens and ones places.__

__Lesson 20: Estimate differences by rounding and apply to solve measurement word problems.__

__Lesson 21:____Estimate sums and differences of measurements by rounding, and then solve mixed word problems.__