Math CBA Next Week

Our first math CBA (Curriculum Based Assessment) is next Thursday, October 4th.  This CBA will cover each of the math concepts we have studied so far this year - place value, comparing and ordering numbers, addition and subtraction with regrouping, examples and nonexamples (looking at a group of objects and deciding how they are related and which other objects would fit into that group), and rounding to the tens place and hundreds place.  Here are some activities to help your child review for the CBA.  The rounding rhyme is what we use in class to to help students remember how to round to the nearest ten or the nearest hundred. 

Place Value 

Place Value Teaching Video
Expanded Form Teaching Video

Better Cast Off Game

Place Value Pirates

Place Value Golf

Place Value to 100,000

Place Value Tank Game

Place Value Puzzler

Place Value to 100,000

Cast Off

Robo Works

Bugle Farms

Place Value Video

Eagles and Airplanes

Expanded Form

Rounding Rhyme

Underline the place to be rounded
Circle the number to the right

One through four - hold on tight

Five or more - watch it grow

Everything else turns into a ZERO

Another Rounding Rhyme

Find the number in its spot.
Go next door and see what you've got.
5 or more raise the score,
4 or less let it rest.
All the numbers to the right run to zero in a fright.

Rounding Websites

Rounding to the Tens Practice

Rounding to the Hundreds Practice
Rounding Practice

Three Digit Addition and Subtraction Websites

Math Journey (Choose either 3 digit addition or 3 digit subtraction)

Textbook Lessons and Games on Subtraction

Textbook Lessons and Games on Addition