Grade 2 · Math · Unit

Measurement, Time, and Money

9 lessonsabout 5 weeks

The unit ends with three more days: a review day, a day for your own unit check, and a day to act on what the check showed.

Unit 6 of 9 in the Grade 2 Math Scope and Sequence

What's included in this unit

9 lessons in teaching order, each with its objective and a teacher note
33 practice pages to print, with an easier and a harder page where available
6 classroom tools for the projector
6 activities and pages that children do on a screen
8 check-up pages to collect

The whole unit in one file

Print every page of the unit at once, with the teacher guide first. The guide has one page per lesson: the objective, what to hand out, and the teacher note.

Teacher guide only (PDF)

The unit file, the teacher guide, and saved pages are included with the Teacher plan.

Your PDF is built in your browser, so it always has the newest version of every page.

Lessons

Lesson 1

Measure with a ruler

Children read the length of an object on a ruler when the object starts at 0, and write the number of units.

StandardCommon Core 2.MD.A.1Measurement and Data

3 class days

Day 1Teach: Ruler · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page
Day 3Reteach and extend: Act on the check-up pages: reteach the children who are not there yet, with the tool and a new page from the maker; the others take a harder page.

Lesson 2

Same length, two units

Children measure the same object twice, with a longer and a shorter unit (paper clips and cubes or craft sticks, then inches and centimeters), and tell why the smaller unit gives the larger number.

StandardCommon Core 2.MD.A.2Measurement and Data

2 class days

Day 1Teach: The Unit Handle · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Check-up page

Warm up and teach

Open The Unit Handle on the projector.

Practice on paper

Same Length, Two Units
Core page Easier page Harder page

Check-up page

One more page of Same Length, Two Units to collect at the end of the lesson.

Teacher note

Common mistakes: Children think the larger number means the longer object, so a ribbon that is 8 cubes long seems longer than the same ribbon measured as 4 paper clips. Others expect the bigger unit to give the bigger number. Some mix the two units in one row.
Words to use: On The Unit Handle, one object sits above two tapes of units, each with its own number (a short end piece left over is not counted). "Both tapes measure the same object." Drag the end of the first tile of the top tape to make its unit smaller. "What happened to the number? Did the object change?" The number goes up; the object and the other tape stay the same. Make the unit bigger: the number goes down. "Smaller unit, more of them." Then pairs measure a pencil, a book, and a glue stick with a classroom ruler, in inches and in centimeters, and say which number is larger and why.
What to watch for: On every page, two ribbons are measured with paper clips and cubes, and two with paper clips and craft sticks; a stick is as long as two clips. On the easier page, two cubes are as long as one clip; on the page for everyone, three. On the harder page, the second row is not finished: the child counts the clips and figures out the other unit (4 clips, 2 cubes under the first clip: 8 cubes; 6 clips: 3 sticks). The child writes both numbers and fills in the circle next to the unit it took more of: the cube on the cube rows, the clip on the stick rows. Have every child say why: "It took more cubes because a cube is shorter than a paper clip."

Lesson 3

Estimate, then measure

Children estimate lengths in inches, feet, centimeters, and meters with benchmarks they know, then measure and compare the estimate with the measurement.

StandardCommon Core 2.MD.A.3Measurement and Data

2 class days

Day 1Teach: Ruler · the routine with the class
Day 2Practice: the routine with the class

Warm up and teach

Open Ruler on the projector.

What the class does

Teach four benchmarks first: your little finger is about 1 centimeter wide, your thumb from the tip to the first knuckle is about 1 inch long, a 12-inch ruler is 1 foot long, and a door is about 1 meter wide. Show an inch and a centimeter on the Ruler tool so the class sees how different they are. On the first day pairs estimate in inches or feet, on the second day in centimeters or meters: a pencil, the desk, a bookshelf, and the rug. They estimate first, then measure with a ruler, a yardstick, or a meter stick, and write three things for each, always with the unit: my estimate, my measurement, how far off. This lesson has no worksheet; the children draw three columns on plain paper.

Lesson 4

How much longer?

Children measure two objects and find how many units longer one is than the other.

StandardCommon Core 2.MD.A.4Measurement and Data

3 class days

Day 1Teach: Ruler · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page
Day 3Reteach and extend: Act on the check-up pages: reteach the children who are not there yet, with the tool and a new page from the maker; the others take a harder page.

Warm up and teach

Open Ruler on the projector.

Practice on paper

How Much Longer?
Core page Easier page Harder page

Practice on screen

Span's Length Gap — How Much Longer?

Check-up page

One more page of How Much Longer? to collect at the end of the lesson.

Make more

Make more pages like this with the Measurement & Size maker.

Lesson 5

Length story problems

Children solve story problems within 100 about lengths given in the same unit (inches or feet): they draw a bar model with a ? for the unknown and write a matching equation.

StandardCommon Core 2.MD.B.5Measurement and Data

2 class days

Day 1Teach: The Planks · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Check-up page

Warm up and teach

Open The Planks on the projector.

Practice on paper

Length Story Problems
Core page Easier page Harder page

Check-up page

One more page of Length Story Problems to collect at the end of the lesson.

Teacher note

Common mistakes: Children add the two numbers of every story, even when a piece is cut off or two lengths are compared. Many put the longest length in a part of the bar instead of on top, so their equation adds what it should subtract. Others answer with a length the story gives.
Words to use: On The Planks, drag the ends to make the top plank 16 and the bottom plank 9. "Which is longer? By how much?" Before moving the piece that sticks out, the class says how long it is: 7. Drag the bracket all the way down to take the piece off and lay it at the end of the short plank: 9 and 7 reach exactly as far as 16. Draw it on the board as a bar: 16 on top, 9 and ? below, and write 16 − 9 = ?. Then tell a story with bigger numbers: "The red ribbon is 63 inches long. The blue ribbon is 48 inches long. How much longer is the red ribbon?" Pairs draw the bar with the longest length on top and write an equation.
What to watch for: Every page has three stories about a ribbon, tape, a scarf, a garden hose, or a fence, each in one unit, with a bar, an equation frame, and the unit beside the answer box. On the easier page, the lengths are whole tens, and the first story is done. On the page for everyone, the stories join two lengths, cut one off and compare two. On the harder page, the unknown moves: find the longer or shorter length, or the piece cut off. 63 − 48 = 15 and 48 + 15 = 63 are both right. Ask: "Which length goes on top, and why?"

Lesson 6

Tell time to the nearest five minutes

Children read a clock to the nearest five minutes and to the quarter hour and choose the matching time.

StandardCommon Core 2.MD.C.7Measurement and Data

3 class days

Day 1Teach: Learning Clock · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page
Day 3Reteach and extend: Act on the check-up pages: reteach the children who are not there yet, with the tool and a new page from the maker; the others take a harder page.

Warm up and teach

Open Learning Clock on the projector.

Practice on paper

What Time Is It?
Core page Easier page Harder page
Quarter Hours
Core page Easier page Harder page

Practice on screen

Sprocket's Clock — Read the Clock to Five Minutes

Check-up page

One more page of What Time Is It? to collect at the end of the lesson.

Make more

Make more pages like this with the Telling Time maker.

Lesson 7

Read a calendar

Children read a month calendar to find the weekday of a date, the date one week later, and the number of days between two dates.

3 class days

Day 1Teach: Calendar Wall · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page
Day 3Reteach and extend: Act on the check-up pages: reteach the children who are not there yet, with the tool and a new page from the maker; the others take a harder page.

Warm up and teach

Open Calendar Wall on the projector.

Practice on paper

Read the Calendar: A First Look
Core page Easier page Harder page
Read the Calendar: A Busy Month
Core page Easier page Harder page

Practice on screen

Read the Calendar: A First Look (a page that checks the answers)

Check-up page

One more page of Read the Calendar: A First Look to collect at the end of the lesson.

Make more

Make more pages like this with the Calendar, Days & Months maker.

Lesson 8

Count mixed coins

Children count the coins in a purse (quarters, dimes, nickels, and pennies), starting with the coins that are worth the most, and write the total in cents.

StandardCommon Core 2.MD.C.8Measurement and Data

3 class days

Day 1Teach: Money Mat · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page
Day 3Reteach and extend: Act on the check-up pages: reteach the children who are not there yet, with the tool and a new page from the maker; the others take a harder page.

Warm up and teach

Open Money Mat on the projector.

Practice on paper

Counting Money: All the Coins
Core page Easier page Harder page

Practice on screen

Count Out the Money — Coins to a Target Amount

Check-up page

One more page of Counting Money: All the Coins to collect at the end of the lesson.

Make more

Make more pages like this with the Money maker.

Lesson 9

Shopping with money

Children read prices from a shelf, add the prices of the things in a basket, and solve two story problems with those prices.

StandardCommon Core 2.MD.C.8Measurement and Data

3 class days

Day 1Teach: Money Mat · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page
Day 3Reteach and extend: Act on the check-up pages: reteach the children who are not there yet, with the tool and a new page from the maker; the others take a harder page.

Warm up and teach

Open Money Mat on the projector.

Practice on paper

Shopping Math: Add Up the Basket
Core page Easier page Harder page
Shopping Math: Two Stories
Core page Easier page Harder page

Practice on screen

Make Change with Coins — Money Word Problems

Check-up page

One more page of Shopping Math: Add Up the Basket to collect at the end of the lesson.

Make more

Make more pages like this with the Money maker.