This Less Paper Classroom product features CCS 5.NF.B5 which states: Interpret multiplication as scaling (resizing), by (5a) Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication, and (5b) Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number; explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence a/b = (n × a)/(n × b) to the effect of multiplying a/b by 1.
Included are 25 full page PDF solve cards. Each solve card features either the scaling of a fraction by another fraction, whole number or a mixed number Students are asked to identify if a given factor is greater than, less than or equal to a product and record their answers on the recording sheet provided.
In addition, each solve card is followed by a full page PDF check card. Each check card features a large QR code, which should be able to be scanned from anywhere in the room if projected on a classroom display screen. Once scanned, the QR code reveals the correct answer.
Also included is a traditional recording sheet and a traditional answer key.
One huge benefit of a less paper product, is that after downloading the classroom teacher has literally no prep at all. How cool is that?
The zip file contains several different file formats. Choose the one that best suits the many ways you plan to use them: Both Solve and Check Cards, Solve Cards Only, Check Cards Only. I have also included a page describing several ways I have used these cards in my room.
While this product was designed to be used on a tablet, iPad or projected on a classroom display like a mimeo or a smart board, you could certainly print it out and use it in a more traditional way if you like.
Be sure to check out my "Launching the Less Paper Classroom" blog post
to read about my journey to becoming a Less Paper Classroom and watch for additional "The Less Paper Classroom" Products arriving in my store soon!