Physics Classroom
The Physics Classroom: Light Waves and Color: The Path Difference
After looking at a representative two-point source interference pattern with accompanying order numbers, students investigate the rationale behind the numbering system, and develop some mathematical equations that relate the features of...
Mr. Martini's Classroom
Mr. Martini's Classroom: Big Number Flashcards: Subtraction Through 99
Learners can practice subtracting two-digit numbers through 99 with these interactive flashcards. The problems change color when the correct answer is given.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Subtraction Cards, Fill in the Blank
Students type the correct positive or negative number to complete the subtraction problems on these interactive flashcards. The problem changes color when the correct number is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Subtraction Flashcards
Students solve positive and negative number subtraction problems on these interactive flashcards. The problem changes color when the correct number is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Addition and Subtraction Comparitive Equations
Students add or subtract two whole numbers and compare the solutions using an inequality symbol. The problem on the flashcard changes color if the correct symbol is chosen.
Mr. Martini's Classroom
Mr. Martini's Classroom: Inequalities: Addition and Subtraction
Students add or subtract two numbers to solve the inequalities on these interactive flashcards. The problem changes color when the correct symbol is chosen.
Mr. Martini's Classroom
Mr. Martini's Classroom: Subtraction: Fill in the Blank
Students fill in the blanks to solve subtraction fact problems on these interactive flashcards. The problem changes color when the correct number is typed.
PBS
Pbs Kids Afterschool Adventure!: Operation: Rainbow Math Activity Plan
Red apples, orange candles, yellow stars, green frogs, and blue, indigo, and violet flowers-they all add up to Rainbow Math fun! During this adventure children learn the colors of the rainbow as they practice counting, adding and...