First, the Basics! The x axis of a graph refers to the horizontal line while the y axis refers to the vertical line. Together these lines form a cross and the point where they both meet is called the origin. The value of the origin is always 0. So if you move your pencil from the origin to the right, you are drawing a line across the positive values of the x axis, i.e., 1, 2, 3 and so on. From the origin to the left, you're moving across the negative values of the x axis, i.e., η, θ, ι and so on. If you go up from the origin, you are covering the positive values of the y axis. Going down from the origin, will take you to the negative values of the y axis.
Valentine's Day is a great opportunity to give your kids a fun and engaging math activity. There are a number of themed activities and math worksheets available through a quick Internet search. Here's how you can use these resources to give the kids a math lesson that they'll enjoy. You can create a number of other fun activities to bring out the inner_mathematician in a child. For example, if you want to teach kids about the basic ideas of volume and surface area, then Valentine's Day could really lend a hand. Fill three glass jars that differ in size with some heart_shaped candy. Ask the kids to estimate how many sweet treats they think each jar contains. The candy could also help children practice their ability to make tallies, data charts and graphs. Using heart_shaped candy of different colors, ask your child to tally how many of each color there are. You could even use one of the themed math worksheets to help. Once they have created a total for each color, ask your child to compile the totals into a bar chart. If you are feeling kind, then the candy can become a generous reward for the hard work that they've done.