Grade 1

1.NBT.A1

Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

October 1, 2018
1.NBT.B2

Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:

October 1, 2018
1.NBT.B2a

10 can be thought of as a bundle of ten ones — called a “ten.”

October 1, 2018
1.NBT.B2b

The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

October 1, 2018
1.NBT.B2c

The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

October 1, 2018
1.NBT.B3

Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and

October 1, 2018
1.NBT.C4

Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. … Read More “1.NBT.C4”

October 1, 2018
1.NBT.C5

Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

October 1, 2018
1.NBT.C6

Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

October 1, 2018
1.G.A1

Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.

October 1, 2018
1.OA.A1

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.1

October 1, 2018
1.G.A2

Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.1

October 1, 2018