Common Core: MATH.CONTENT
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, 2018K.OA.A4
For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
October 1, 20181.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, 20181.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, 20181.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, 20181.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, 20181.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, 2018K.G.A3
Identify shapes as two-dimensional (lying in a plane, “flat”) or three-dimensional (“solid”).
October 1, 2018K.G.B4
Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/”corners”) and other attributes (e.g., having sides of equal length).
October 1, 2018K.G.B5
Model shapes in the world by building shapes from components (e.g., sticks and clay balls) and drawing shapes.
October 1, 2018