Understanding how to write numbers in their various forms is a second grade, Common Core math skill: 2.NBT.3. Below we show two videos that demonstrate this standard. Then, we provide a breakdown of the specific steps in the videos to help you teach your class.
Your students should be familiar with the first grade skill of counting up to 120 starting from any number below 120 (1.NBT.1), this skill helps them understand greater or less than values. The second grade skill is also closely linked to the first grade skill of understanding place values (ones and tens) in two-digit numbers (1.NBT.2).
Comparing large numbers as greater than, less than, and equal to will help your students understand future concepts in third grade. In third grade, your students will learn how to interpret the products of whole numbers (i.e. 8 x 3 is the same as 8 groups of 3 objects each) (3.OA.1). They will also learn to use multiplication and division within 100 while solving word problems in situations that involve “equal groups, arrays, and measurement quantities” (3.OA.3).
Common Core Standard: 2.NBT.3 - Read and write numbers to 1000 using base-ten numerals, number names, and expanded form
Students who understand this principle can:
2 Videos to Help You Teach Common Core Standard: 2.NBT.3
Below we provide and breakdown two videos to help you teach your students this standard.
Video 1: Numbers: Standard, Written, & Expanded Form
This video teaches students the difference between standard (digit), written, and expanded form of numbers.
Using the number 987, the video shows students how to write the number in written and expanded form. First, it explains that the digit form is known as standard form.
Video 2: Numbers as Digits and Words
The video introduces the topic and then moves straight into practice problems. First, Boddle reviews how to write the given number using digits.
Next, Boddle flips the problem around and goes over how to write the given number in word form.
Now that your students understand the basic idea, we can move onto bigger numbers. Boddle has students match the digit form of large numbers with their word form counterpart.
That’s the end! Your students did a great job!
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*Information on standards is gathered from The New Mexico Public Education Department's New Mexico Instructional Scope for Mathematics and the Common Core website.