Sumdog makes differentiation easy in your classroom. Kids can play the same games -- against each other -- and be practicing different skills at different levels. That's a really cool feature. The site is great for at-home or in-class practice, and parents can even join in the fun and play against their kids. To get kids excited about math, your school can compete in national Sumdog math contests for prizes. Questions are personalized for kids at different levels, so each kid has a fair shot at winning. Nice!Continue reading Show less
Sumdog lets kids play math games against their friends, classmates, or students from around the world. You have the flexibility to choose from 25 different games to practice the same skill; skills include arithmetic, fractions, decimals, percentages, equations, and money. Games stay the same, but the questions within them change based on teacher selections and student progress. Every correct answer earns you coins to spend in the virtual shop and buy outfits for your virtual avatar.
Cake Monsters – For every math fact you get right, you get to feed your monster cake; but pick your cake pieces very carefully as they pile up.
Starship – Answer math facts quickly to shoot enemy ships before they destroy you.
Touchdown – Click on the football player on the other team with the right answer before he tackles you.
Kids love choice and competition: Sumdog provides both while also making lots of room for real math practice. Each game is timed, creating a sense of urgency and excitement as well as helping kids build their speed and increase their math fact fluency. Kids will also love the coin incentive to go shopping for their avatar (although some of the female clothing options are unecessarily provocative). Some games are a bit too much; the dizzying graphics in "Touchdown" may prevent kids from focusing on the math. But Sumdog does provide a bunch of different types of games, which is helpful for kids with various learning styles.
"Junk Pile" has you drag number answers down to a dumping ground; they then transform into various pieces of trash, which you stack up. In games like this, there's not as much of a connection between the game and the math as there could be; it would be better to create piles of junk with a certain number of garbage bits, or work fractions into the mix somehow. Pulling these things together a bit more could build a much better conceptual understanding that'll stick with kids.
Note: be cautious of kids trying to game the system. In some games, like Starship, kids can randomly click buttons until only the right answer remains.
Key Standards Supported
Expressions And Equations
Apply the properties of operations to generate equivalent expressions.
Measurement And Data
Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately. Example: If you have 2 dimes and 3 pennies, how many cents do you have?
Number And Operations In Base Ten
Fluently multiply multi-digit whole numbers using the standard algorithm.
Number And Operations—Fractions
Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.
Apply and extend previous understandings of multiplication to multiply a fraction by a whole number.
Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.
Operations And Algebraic Thinking
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Apply properties of operations as strategies to add and subtract.3 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.
Ratios And Proportional Relationships
Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.