Dexteria Dots - Get in Touch with Math is a great tool for teaching, practicing, or building fluency in fundamental math concepts. You could use the beginner levels with kids who are just learning about addition and subtraction. Have kids complete the first level of each game option (combine, separate, or both) and evaluate their scores as a pre-assessment. Then, after kids learn about more traditional addition and subtraction number sentences, have them complete the same levels and compare their scores to the pre-assessment. Use the same process for older learners, but have them work in the advanced and expert levels and challenge them to earn bonus dots. As reinforcement, have kids choose several dot challenges to write as number sentences or equations.Continue reading Show less
Dexteria Dots - Get in Touch with Math is simple to use, but can challenge and engage kids with a wide range of abilities. The developer has targeted kids age 2 to 8, but even adults will have fun with the game. To start, kids choose from three options: combine (add), separate (subtract), or both. Each option includes four levels, from beginner to advanced. As kids start to play, a voice command tells them what value to make. Kids tap "Go," and manipulate dots by tapping, slicing, dragging in, or dragging out. If they are fast enough and know how to add or subtract different numbers to get the same value, kids can earn bonus dots. The app tracks scores and times, and these can easily be cleared for repeated play or sharing. You can even generate an email report to evaluate kids' progress.
Kids can learn how to combine math and critical thinking skills in a game that addresses several Common Core standards. The app focuses primarily on addition and subtraction skills, but kids can use additional skills like number sense, counting, greater than, and smaller than to help them successfully play the game.
Gameplay involves a touch interface, which kids use to either separate or combine dots in order to produce a particular value. For example, kids may be asked to produce the value 6, and they have to work with dots of varying sizes to make a 6. In the beginner levels, dots include four attributes: numerals, smaller mini-dots, color, and size. These attributes help kids determine the value of the dots. For instance, a red 4-dot is larger than the 3-dot and includes the numeral 4 and four mini-dots on its face. Young learners can count dots to add or subtract, eventually figuring out that larger dots represent larger values and smaller dots represent smaller values. As the difficulty level increases, attributes are removed from the dots. In Expert level, only colors are given. Older learners can use more advanced addition and subtraction strategies, along with speed, to earn bonus dots. Fun animations and ease of use make Dexteria Dots - Get in Touch with Math a great way for kids to learn, practice, and build fluency.
Key Standards Supported
Counting And Cardinality
Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group, e.g., by using matching and counting strategies.1
Understand that each successive number name refers to a quantity that is one larger.
Count to answer “how many?” questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1–20, count out that many objects.
Count forward beginning from a given number within the known sequence (instead of having to begin at 1).
Number And Operations In Base Ten
Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
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.
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