Collect, sort, and organize data in up to three categories using models/representations such as tally marks or T-charts
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United States Video Lessons
Grade 1 Mathematics Video Lessons
Watch 13 dedicated curriculum video lessons.
Compose 10 with two or more addends with and without concrete objects
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Define money earned as income
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Display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication
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Draw conclusions and generate and answer questions using information from picture and bar-type graphs
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Explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences
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Identify U.S. coins, including pennies, nickels, dimes, and quarters, by value and describe the relationships among them
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Measure the same object/distance with units of two different lengths and describe how and why the measurements differ
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Recognize instantly the quantity of structured arrangements
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Represent the comparison of two numbers to 100 using the symbols >, <, or =
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Represent word problems involving addition and subtraction of whole numbers up to 20 using concrete and pictorial models and number sentences
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Use measuring tools to measure the length of objects to reinforce the continuous nature of linear measurement
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Use relationships to count by twos, fives, and tens to determine the value of a collection of pennies, nickels, and/or dimes
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