Another problem with almost all worksheets is that they don't prevent incorrect answers. Self_checking worksheets just let the student know they did something wrong__after the fact. I am a firm believer in the concept that, if at all possible, learning should be structured in small chunks in such a way that there is very little possibility for error. Worksheets often allow for mistakes to be made and then to be repeated many times. A mistake that gets practiced is extremely difficult to correct. This especially happens when worksheets are used as time fillers or baby sitters and the work isn't really being supervised.
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.