One child answers using a magnetic number ~ His/her partner checks using unifix cubes. (Blog post focusing on hands-on learning using flashcards.)
Simple mais efficace (à voir plutôt en MS par rapport à la motricité fine)
The slips of numbers with blanks throughout are a great way for students to learn the sequence of numbers. The slips can either be laminated to where dry erase markers would work, or the magnetic numbers also would work. This could be an activity to integrate sequencing in math.