How to learn Grade 2: Mathematics

Idaho academic standards: Mathematics, Grade 2

0 of 6 concepts ready to learn · Markdown, for your AI

1. Geometry · Partition circles and rectangles into two, three, or four equal shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

1. Halves & Quarters of Shapes: Partition circles and rectangles into two and four equal shares and describe them using the words halves, fourths, and quarters
2. Decomposing a shape into more equal shares: Understand that decomposing a shape into more equal shares creates smaller shares
3. Splitting shapes into equal parts (age 7+): Partition circles and rectangles into two, three, or four equal shares; describe shares as halves, thirds, and fourths; recognise that equal shares of identical wholes need not have the same shape

2. Number and Operations in Base Ten · Add and subtract whole numbers within 1,000, by using physical, visual, and symbolic representations, with an emphasis on place value, properties of operations, and

1. Addition and subtraction within 1000: Add and subtract within 1000 using concrete models, drawings, and strategies based on place value; understand composing and decomposing tens and hundreds

3. Number and Operations in Base Ten · Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones. Understand:

1. A Hundred Is Ten Tens: Understand that 100 can be thought of as a bundle of ten tens — called a 'hundred'
2. The three digits of a three-digit number: Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones