This is a set of lesson plans with an awesome set of 10 different "Mystery Number" activities. Seriously, do you want a FECKING GOOD way to transform what appears to be a really boring lesson ("Here's how you round off two digit numbers, kiddies!') into a lesson that includes reasoning, hypothesis testing, problem solving AND collaboration!
Ten different booklets: a "Sample" to demonstrate to your students, plus 9 more for them to work on individually or collaboratively. AND there's a FECKING GOOD lesson plan included which will transform your teaching of this topic.