Hi!
There are loads of educational games on
https://www.twinkl.ca/go - you'll be able to find some math-related ones on there that suit the age.
There are also a bunch of great resources on the site for grade 6 maths, some of which are free!
This is a free interactive measurements activity:
mm to cm - m - km Length Equivalents Interactive Matching Activity
https://www.twinkl.ca/resource/mm-to-cm-m-km-length-equivalents-interactive-matching-activity-tg-437
This is powerpoint on measurements:
Units of Measurement Warm-Up PowerPoint
https://www.twinkl.ca/resource/au-t2-m-4184-units-of-measurement-warm-up-powerpoint
Ratio and Proportion PowerPoint
https://www.twinkl.ca/resource/t2-m-102-ratio-and-proportion-powerpoint
Hope this helps or at least leads you to something that might keep engagement and focus a little more!
