Cross-post of an article I wrote for The Apple, you can read the original article here. For those of you who aren’t familiar with it, The Apple is a social network for educators that is also a great resource for inspiration, lesson ideas, educational news, videos, and job postings. Kelly Tenkely | TheApple.com Differentiating instruction can be challenging. Student’s educational strengths and weaknesses can be widely varied, making it a difficult task to meet each student’s needs in any given lesson. Math is one such subject area where student skill levels can be very different. Some students have their basic…