CLASSHERO CURRICULUM

1st Grade Math

Counting Patterns

Counting Images – 1 to 20

Count to 20, starting at any number less than 20. In this range, read and write numerals and represent a number of objects with a written numeral.

1.NBT.A.1

Counting – 1 to 20

Count to 20, starting at any number less than 20. In this range, read and write numerals and represent a number of objects with a written numeral.

1.NBT.A.1

Counting – 1 to 120

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.

1.NBT.A.1

Missing Integers – 1 to 120

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.

1.NBT.A.1

Counting Backwards

Description is not available

1.NBT.A.1

 Place Value

Place Value

Understand that the two digits of a two-digit number represent amounts of tens and ones.

1.NBT.B.2

Comparing Numbers

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

1.NBT.B.3

Operations with Tens

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

1.NBT.B.2.A

Addition with Place Value

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.

1.NBT.C.4

Add & Subtract with Tens

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. 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.

1.NBT.C.6, 1.NBT.C.4

Addition & Subtraction

Addition Word Problems

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. Relate counting to addition and subtraction . Understand subtraction as an unknown-addend problem.

1.OA.A.1, 1.OA.C.5, 1.OA.B.4

Subtraction Word Problems

Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.

1.OA.C.6, 1.OA.D.8

Matching equations

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.

1.OA.D.7

Adding two numbers

Apply properties of operations as strategies to add and subtract.

1.OA.B.3

Addition Equation with Images

Apply properties of operations as strategies to add and subtract.

1.OA.B.3

Subtraction

Apply properties of operations as strategies to add and subtract.

1.OA.B.3

Subtract with Images

Apply properties of operations as strategies to add and subtract.

1.OA.B.3

Verifying Equations

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.

1.OA.D.7

Adding Three Numbers

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.

1.OA.A.2

Adding 3 Numbers with Images

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 21.

1.OA.A.2

Time

Time

Tell and write time in hours and half-hours using analog and digital clocks.

1.MD.B.3

Data

Bar Graphs

Organize, represent, and interpret data with up to three categories; ask and answer questions about the total number of data points, how many in each category, and how many more or less are in one category than in another.

1.MD.C.4

Geometry

Defining Shapes

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.

1.G.A.1

Compose

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.G.A.2

Partition

Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

1.G.A.3