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A Homeschooler's Guide: the Development of Mathematical Thinking from Ages 4-8

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The more parents know about what to expect at each stage of their child's growth, the better equipped they are with appropriate activities that will further their child's learning and development. DreamBox Learning supports homeschooling parents in their commitment to an excellent, individualized math education.

If you find this Math Development Timeline useful, click here to learn more.

August 5, 2009

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The developing mind from ages 4 - 8

Homeschoolers know from experience that development is very individual – patterns of growth can be unpredictable and don't always align with a child's chronological age.

Young children possess a rich assortment of mathematical cognitive abilities. Through play and everyday family activities, they have spontaneously compared, sorted, arranged, and counted objects, explaining what they did and challenging others' explanations.

Young children are intensely curious about their environment and interact directly with it. What they know is filtered through their perceptions, which are particular to them and can be very unreliable. Children at this intuitive stage will believe that a quantity changes when the arrangement is changed, even if they have counted several times. As children's brains develop, they become less dependent on perception and the quality of their thinking becomes more logical.

The Math Development Timeline


Math learning at age four

A four year old may easily compare sets of objects to know which is more, but have difficulty figuring out how many he actually has. He may recognize that how many? means to count, but may struggle to do this. There are hurdles in successful counting: (1) each object is counted only once; (2) the name of a number corresponds to each one counted; and (3) there's a logic to the sequence: base ten has a predictable pattern. Four year olds are also fascinated with collecting and sorting objects.

What you can do at home

Observe and listen while your child is playing to understand his mathematical knowledge. How does she count? Is it a sing-song or meaningful? Does she touch each object once? Is her voice in sync with her tag? Does she keep track of what's been counted? Ask questions to help her develop counting strategies. Try to resist showing your child what to do so you don't rob her of figuring it out on her own! When walking, collect objects she likes. At home find different ways to sort this collection.


Math learning at age five

A five year old is less depen­dent on matching strategies to determine one-to-one correspondence, and knows that for 5 kids she'll need 5 pencils. When she counts she knows how many? but may not know that the last number counted means the total quantity. Once they can count on, five year olds may know which set is more and may sequence quantities from smallest to largest. But the question how much more? can be difficult. They may struggle with how much larger one quantity is than another.

What you can do at home

If your child counts accurately you can help him think about the permanence of a set of objects. Put six pennies in a row, then change the arrangement. Will he think the quantity changed? Conservation of number is a big idea needed for addition and subtraction. Five year olds love repetitive patterns, which help develop mathematical thinking. Clapping patterns can help him discern sequences and predict what comes next. Recognizing the unit in a pattern is an important tool in his mathematical toolbox.


Math learning at age six

The six year old is devel­oping a more complex understanding of number. He knows that 6 can be 5 and 1, 3 and 3, etc. He knows that all sets of 6, no matter what objects, are equivalent. And the last number counted is the number of the set. These big ideas underpin more effi­cient counting strategies such as counting on from the larger number. He's also developing the idea that "nothing" is represented by 0, and that any number in the system can be written with the digits 0-9.

What you can do at home

Dice, cards, and board games are fun and can help a six year old gain fluency with addition combinations. Engage her thinking by playing "Hidden Counters" in which part of a set is hidden. Count out eight pennies (making sure she knows there are eight). Hide four under a cup, leaving the rest visible. Ask, "How many are hidden?" Notice her strate­gies for figuring this out. Does she know automatically that four are under the cup because she knows 4 + 4 are 8? Does she use her fingers to figure it out?


Math learning at age seven

Because seven year olds can better understand space and quantity, a broader range of mathematical ideas become more acces­sible. They now have a repertoire of basic addition and subtraction combinations that they can use as tools in computing. For example, to solve 19 + 21, a child might think of a related combination, 20 + 20. Some may grasp reversibility, a big developmental shift needed to under­stand how subtraction is the inverse of addition (50 – 25 can be thought of as 25 + ? = 50).

What you can do at home

Find ways to help your seven year old build confidence in her mathemati­cal reasoning ability. Asking, how much money is six quarters? might help her realize that if she knows that four quarters is one dollar, she can figure out what six quarters is. To help prepare for multiplication, you can pose questions that help her think in groups. A question like how many fingers do five people have? may be hard or easy for her to solve. Your challenge will be to find ques­tions that support her reasoning.


Math thinking at age eight

At eight, children are using numbers and quantitative methods in advanced ways, such as reversibility — they understand subtraction as the inverse of addition. A major developmental shift occurs when beginning multiplication. In addition, 130 is two or more addends that make a whole, but in multiplication 130 is related to a unit that can shift. If the unit is ten, 130 means 13 tens But if the unit is 100, 130 means 1.3 hundreds. This is unitizing, the basis for future work with fractions, decimals, and percents.

What you can do at home

Eight year olds may take on a lot, then feel frustrated when accomplishments don't come easily. Help her break a task down: (1) what do you know? (2) identify the problem to solve; (3) identify one way to solve it. Help her develop confidence by not correcting a wrong answer, but try to follow her reasoning. Focus on the process, not the answer, to help her take risks. Eight year olds are developing more complex ways of reasoning — they like strategic thinking games like checkers, chess, Monopoly, and Clue.

Parental participation in learning supports academic success

By fostering a nurturing homeschool environment for math learning, and through fun, everyday activities, parents can help their children become math literate and prepared for success in a changing world.

According to research conducted by Greg Duncan of Northwestern University, the single most important factor in predicting later academic success is that children develop early mastery of math and literacy concepts. And math proficiency is most important. Mastery of early math predicts not only future math achievement, it also predicts future reading achievement! You can read the full DreamBox Learning paper on our website: "A Parent's Guide to the Development of Mathematical Thinking"

About DreamBox Learning

DreamBox Learning K-2 Math is the next generation of online learning. DreamBox teaches an in-depth math curriculum through a completely individualized, engaging, and effective experience. Whether it's used as a supplemental or primary homeschool curriculum, DreamBox builds understanding and confidence in math fundamentals through in-depth focus on Number Sense and Computation. Kids think it's a fun adventure full of stories, interactive lessons, and games. But parents know it's effective, individualized math made fun so their child will be motivated to learn.

DreamBox individualizes the learning experience at a much deeper level than any other online educational product. No other product continually assesses and adapts to each student at this fine-grained level – in the lessons, their difficulty and scope, the number and type of hints given, pacing and sequence, and much more. And studies on DreamBox Learning have demonstrated student achievement scores increased by 19% after just two weeks of using DreamBox Learning K-2 Math! DreamBox Learning has been adopted in more than 1,000 classrooms, in schools throughout North America and around the world.

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