This material is used as a follow up from lessons and stories about converting. The material includes converting between ml and cm3, cm and mm, and ha and m2. There are ten cards for each area. Cards are numbered and made so that a student can practice a card each week or day.

Cards can be made and laminated (as shown by the photo) and reused or Students can use the material as a worksheet or test sheet. Answers can be written on the back if you wish to have a control of error.