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Ohio's Learaning Standards in Mathematics

We can solve addition word problems to 20 with unknowns in all positions.

We can solve subtraction word problems to 20 with unknowns in all positions.

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

We can apply properties of operations as strategies to add and subtract.

We understand subtraction as an unknown-addend problem.
For example, subtract 10 – 8 by finding the number that makes 10 when added to 8. Add and subtract within 20. 8 + 2 = 10

We can relate counting to addition and subtraction.

We can use a variety of strategies to add and subtract within 20, demonstrating fluency for addition and subtraction within 10.

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

We can determine the unknown whole number in an addition or subtraction equation relating three whole numbers.

For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ – 3, 6 + 6 = _.

We can count to 120, starting at any number less than 120 and read and write numerals and represent a number of objects with a written numeral.

We understand that each digit in a two-digit number represents amounts of tens and ones.

We can compare two two-digit numbers and record the results of comparisons with the symbols >, =, and <.

We can find the sum of problems with both one and two digit addends.

When given a two-digit number, we can mentally find 10 more or 10 less than the number, without having to count; and explain the reasoning used.

We can use concrete models or drawings and strategies we have learned to subtract multiples of 10 and explain our reasoning.

We can order three objects by length and compare the lengths of two objects indirectly by using a third object.

We can use multiple copies of a shorter object to measure a longer one.

We can tell and write time in hours and half-hours using analog and
digital clocks.

We can organize, represent, and interpret data with up to three categories.

We can distinguish between defining attributes and non-defining attributes and build and draw shapes that possess these attributes.

We can compose two-dimensional or three-dimensional shapes to
create a composite shape and compose new shapes from the composite shapes.

We can partition circles and rectangles into two and four equal shares and describe the shares using the words halves, fourths, and quarters.

To access the Ohio Common Core and Academic Standards in Language Arts online:

Math Common Core Standards

Scroll down/Click:  "
Grade 1 Model Curriculum for Mathematics"