Subtraction with friendly numbers using the number line

The common core way to teach math is throwing a lot of you parents and grandparents for a tail spin. Thanks to the parents who have stopped in for a lesson on our current strategy of 3-digit subtraction using a number line. To those who haven't made it, I hope you can stop in soon! I also wanted to let you know that Mr Estell recorded me teaching a lesson and he will be putting it up on the school's web page soon, with a copy of the worksheet used in the lesson.Lesson with Ms GThink Math



Direct Instruction Lesson with worksheet