Big Idea: Students explore numbers in a variety of ways to understand how to compare three-digit numbers based on an understanding of place value.
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Big Idea: Students use numbers, base-ten models, and real-word pictures to examine ways to place numbers in their correct place.
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Big Idea: Using base-ten materials and place-value skills, students gain a better understanding of how to add and subtract numbers.
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Big Idea: Using base ten blocks and place value, students explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.
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Big Idea: In this lesson, students will explore how the use of base tens, and place value can be used to help them explain and solve addition word problems.
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Big Idea: Students will be able to explain using concrete objects, pictures and words (oral or written) why addition or subtraction strategies work.
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Big Idea: In this collaborative lesson students will use "Head, or Tails" to learn how to tally count by fives and add on left over numbers.
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