Mul tmath for kids - Version 006 Math puzzles. Interactive education. A lot of math information for teachers, Mathematics lessons for elementary, middle, and high school including geometry, fractions, and algebra. This section of The Lesson Plans Page contains math lesson plans, math ideas, math lessons, math thematic units, lesson plans for teachers. Mathematics Lesson Plans. Math - Elementary (K-5). math01.txt Math review on concept and facts (4-6) Watch free, searchable online video of teachers modeling math lessons:. Pre K-2, 3-5, 6-8, High School (9-12). Featured Lessons and Activities.