Spaceship Math–FREE leveled worksheets to teach basic addition and subtraction

SpaceshipMathHelp kids learn math facts by using Spaceship Math, the FREE leveled worksheets with 26 scaffolded levels.

Spaceship Math is part of Dad’s Worksheets, a terrific math site that I have written about a few times.  With Spaceship Math, students learn their basic facts a few at a time.  It starts very simply.  For example, level A for addition covers 1+2 and 1+3.  That’s it, unless you count 2+1 and 3+1 as separate facts.  Level by level, students build their skills.  There are four versions of each level, plus timed tests for every two levels.  The worksheets are cumulative, so students are always reviewing old facts.

To find Spaceship Math on Dad’s Worksheets, click on the operation you want students to practice.  That opens a menu of choices for the operation, and then you can easily find Spaceship Math.

I like to give the whole class a placement test.  I choose a level in the middle, usually L.  That has 7+2 and 7+4.  From the placement test, I assign students to packets of either levels A-L or L-Z.  The students don’t exactly thank me for these packets, but they do see that the packets help them learn.  Plus, the leveled worksheets keep kids in their zone of proximal development, so it never feels too difficult.

I really like Spaceship Math for addition and, subtraction.  For multiplication, I recommend Best Multiplication Workbook EVER!–and not just because I wrote it.

Spaceship Math multiplication is very different from the way most of us learned our times tables–one table at a time.  It moves pretty quickly, and doesn’t give students a sense of how each times table works as a unit.  My Best Multiplication Workbook EVER! levels times tables in an effective way.  It provides lots of practice problems, plus word problems that show the value of each times table.

I haven’t written a Best Division Workbook EVER! yet, so for division, I give students worksheets based on the times tables.   I assign division times tables in the same order I presented multiplication tables in Best Multiplication Workbook EVER!

I hope you and your students enjoy Spaceship Math.

Posted in FREE Worksheets,Math by Corey Green @ Mar 23, 2015

 

Take your class to the computer lab for St. Patrick’s Day online games

IrishFlagCelebrate St. Patrick’s Day by playing some FREE online games during your computer lab time.  Here are some fun ones for elementary students:

Posted in Holidays by Corey Green @ Mar 16, 2015

 

A vertical number line makes math easier to understand

Vertical number lineMost teachers were taught to use a horizontal number line to teach concepts.  I recommend using a vertical number line because it’s easier for students to understand.

When we add and subtract, we thinking of going up or down, not left to right.  Wouldn’t that be easier to picture on a vertical number line?  After all, to most kids, adding is going up and subtracting is going down.  Kids don’t think of numbers as going from left to right.

To teacher integers (positive and negative numbers), I like to write a vertical number line from -10 to 10.  I write the positive numbers in black and the negative numbers in red.  (In a business context, red is the color for negative numbers.)  To make 0 stand out, I write it big and blue.

Having positive numbers one color and negative numbers another helps students see the difference.  Working on a vertical number line helps them see why –2+3 = 1.

 

Posted in Math by Corey Green @ Mar 9, 2015

 

Easy tips to make your master paper and key stand out

TeacherCutting corners is usually not a good idea…but doing so helps your master paper stand out.

How to make your master stand out: Snip the top right corner.  The snipped corner doesn’t show up on copies, but Iyou can easily see that a paper is your master, and you’ll be careful not to throw it away.

How to make your key stand out: Write KEY in large letters across the top of the paper.  If you just write “key” on the name line, it doesn’t stand out from the students’ papers.

How to make the answers on your key stand out: Write with fat Crayola markers.  That way, the answers are in color and the lines are much thicker than what’s on the paper.  The answers really stand out, making my grading go more quickly.

Posted in First Year Teachers,Tips for Teachers by Corey Green @ Mar 2, 2015