Mental Math Cards vs Math Animations (Grades 1-8)使用状況と統計

Great way to "see" how math works! --by Greg Garner Awesomely Effective!!! An absolutely amazing and brilliant way to visually demonstrate basic math principles! Thank you! -- by iPad Dad3 Math Animations : mathematics animations. The animations provide short, sharp, visual explanations of mathematical concepts. Who is it for? It is for everyone interested in mathematics. It is principally designed for upper primary and lower secondary teachers to use in the classroom, but students interested in deepening their understanding of core concepts will also find the site useful. Animations: 1. Addition 2. Addition Table 3. Subtraction 4. Subtraction Table 5. Multiplication 6. Multiplication Table 7. Division 8. Division Table 9. 123 = ? 10. 12 + 45 11. 123 + 456 12. 45 - 12 13. 456 - 123 14. 12 × 3 15. 12 × 45 16. 123 × 56 17. 456 ÷ 3 18. 456 ÷ 12 19. a + b = b + a 20. a × b = b × a 21. (a+b) × c = a×c + b×c 22. Perimeter of a Square 23. Perimeter of a Rectangle 24. What is Area? 25. Area of a Square 26. Area of a Rectangle 27. Area of a Parallelogram 28. Area of a Triangle 29. Area of a Trapezoid 30. Angle sum of a Triangle 31. Definition of a circle 32. Radius × 2 = Diameter 33. What is π ? 34. Perimeter of a circle 35. Area of a circle 36. What is Fraction? 37. Adding Fractions 38. Subtracting Fractions 39. Multiplying Fractions 40. Dividing Fractions 41. Fraction × n 42. Fraction ÷ n 43. 1.23 + 0.56 44. 1.23 - 0.56 45. 1.2 × 0.5 46. 1.2 × 4.5 47. 1.23 × 0.56 48. 4.56 ÷ 2 49. 4.56 ÷ 1.2 50. X + 3 = 12 51. 2X = 8 52. 2X + 3 = 11