Whoops! Something went wrong.

Click here to refresh the page

Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving

Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Rounding off Decimals by Thinking: Higher Order Thinking and Problem Solving
Product Description
This is an activity I’ve done with my 5th, 6th and 7th graders to help them understand the importance of “thinking” before rounding off a number. You know, some of us (not you, of course) teach rounding as a “rule” and our students blindly go off rounding numbers without thinking about the implication of doing so. These two activities are designed to impress upon your students that when they round off a number, they should do it with a certain amount of forethought, because if they blindly follow the “rule,” they’ll end up with the wrong answer!

Well, mathematically the answer is correct, but the result will be all wrong. In this case, the context is fencing in an area of ground. Now, if you need to fence off an area and you order too little fencing, then that’s not going to work, right? That’s why I designed this actvity so that if you blindly follow the rules of rounding, your students will end up ordering too little fencing. HA!

I like to let students work in pairs on these kinds of activities and then discuss their results with others. It’s important that they have a chance to see the implications of blindly following a “rule” and that in mathematics you have to go with something more intuitive than rules and more thoughtful than “common sense.” YOU HAVE TO THINK BEFORE ACTING, EVEN THOUGH YOU HAVE THE RIGHT ANSWER!
Total Pages
8 pages
Answer Key
Included
Teaching Duration
N/A
Report this Resource
  • Comments & Ratings
  • Product Q & A
Loading...
$1.95
Digital Download
avatar

SamizdatMath

536 Followers
Follow
$1.95
Digital Download
Teachers Pay Teachers

Teachers Pay Teachers is an online marketplace where teachers buy and sell original educational materials.

Learn More

Keep in Touch!

Sign up