Many ways to make a number: 1st grade math lesson

What this lesson shows

37 as 3 tens and 7 ones, 2 tens and 17 ones, or 37 ones. Open a rod each time.

The worked example

The lesson works this one step by step: 37. Then your kid tries one like it on paper.

The steps

Tens and ones
Open a ten
Same number, new way

Helping at home

Start with tens and ones, then open one ten into 10 ones. The number stays the same each time.

If your kid gets stuck

Open one ten into 10 ones.

Watch it with Lux

With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.

See how Lux works

Standards

Common Core 1.NBT.B.2a
10 can be thought of as a bundle of ten ones — called a "ten."

Matches a standard in all 50 states and DCSee each state's code

Alabama MA19.1.11a
Alaska 1.CC.4, 1.NBT.2.a
Arizona 1.NBT.B.2.a
Arkansas 1.NPV.3, 1.NPV.4
California 1.NBT.B.2
Colorado 1.NBT.B.2.a
Connecticut 1.NBT.B.2
Delaware 1.NBT.B.2
District of Columbia 1.NBT.B.2
Florida MA.1.NSO.1.3
Georgia 1.NR.1.2
Hawaii 1.NBT.B.2
Idaho 1.NBT.B.2.a
Illinois 1.NBT.B.2
Indiana 1.NS.2
Iowa 1.NBT.B.2.a
Kansas 1.NBT.2.a, 1.NBT.2.d
Kentucky KY.1.NBT.2.a
Louisiana 1.NBT.B.2.a
Maine 1.NBT.B.2a
Maryland 1.NOS.B.3.a, 1.NOS.B.3.b, 1.NOS.B.3.c
Massachusetts 1.NBT.B.2.a
Michigan 1.NBT.B.2
Minnesota 1.1.1.1, 1.1.1.2
Mississippi 1.NBT.2.a
Missouri 1.NBT.A.1, 1.NBT.A.2
Montana MT.1.OA.3, MT.1.NBT.1, MT.1.NBT.2
Nebraska 1.N.3.a
Nevada 1.NBT.B.2
New Hampshire 1.NBT.B.2
New Jersey 1.NBT.B.2a
New Mexico 1.NBT.B.2
New York NY-1.NBT.2.a
North Carolina NC.1.NBT.2.a
North Dakota 1.NO.NBT.1
Ohio 1.NBT.2
Oklahoma 1.N.1.2, 1.N.1.3
Oregon 1.NBT.B.2
Pennsylvania CC.2.1.1.B.2
Rhode Island 1.NBT.B.2.a
South Carolina 1.NR.1.2, 1.NR.1.3, 1.NR.1.1
South Dakota 1.NBT.B.2.a
Tennessee 1.NBT.B.3
Texas 111.3.b.2.B, 111.3.b.2.C
Utah 1.NBT.2.a
Vermont 1.NBT.B.2
Virginia K.NS.1j, 1.NS.1e, 1.NS.2c, 1.NS.2d
Washington 1.NBT.B.2
West Virginia M.1.10
Wisconsin M.1.NBT.B.2
Wyoming 1.NBT.2a, 1.NBTP.2.A

Many ways to make a number