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Math Specialist


12172013_85339_0.png      Learn Zillion Math Videos Grade 2 & 3


Learn Zillion Quick Code
Name
Description
Place Value


Understand the Value of Numbers

Use Expanded Form to Understand Place Value of Three-Digit Numbers
Uses arrow cards and expanded form to explain value of place in 3-digit numbers (includes 4-digit numbers)
Understand the value of a digit in a multi-digit number

Round to the nearest 10 using a number line
Use benchmark numbers on a number line to round 2 & 3 digit numbers
Round to the nearest 100 using a number line




Addition


Add within 100 using base 10 blocks

Add within 100 on an open number line
Using ten as a strategy (must know combinations of ten)
Add within 100 using an open number line
Also show how to find a missing addend
Add within 1000 using base ten blocks

Add within 1000 by regrouping base 10 blocks

Add three-digit numbers with a number line

Addition using the commutative and associative properties
Uses an open number line and decomposes numbers to add-explains the properties for addition
Solve addition problems using partial sums
Partial sums is shown through expanded form



Subtraction


Subtract within 100 using an open number line
Subtract a one-digit number from a two-digit number by decomposing the one-digit number
Subtract two 2-digit numbers using addition
Count up on the number line to subtract
Subtract three-digit numbers with a number line

Subtract within 1000 using an open number line




Mentally add/subtract
10 & 100


Mentally subtract 10 or 100 using base 10 blocks

Mentally add or subtract 10 or 100 using expanded form

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