Ivy's Meadow

Ivy's Meadow, alternatively titled Ivy's Meadow Math Game, is an online activity featured on the Knowledge Adventure website since around 2010. It is intended to teach addition and subtraction skills. It utilizes the Flash plugin and as such has been deprecated.

Description
The player must help Ivy collect three fireflies to light up her house with. There is a row of lily pads leading across the water, which are numbered, and a firefly will be hovering over one of the lily pads. Ivy must make it to the firefly in two jumps.

The player must look at the number that the firefly is currently at, and then look at the number that shows how far Ivy will go for her first jump. If Ivy is going to jump to a lily pad with a smaller number than the firefly's number, the player must input a number that, when added to Ivy's number, will equal the firefly's number. If Ivy is going to jump to a larger number than the firefly's number, then the player must input a number that, when subtracted from Ivy's number, will equal the firefly's number.

Difficulty level differences

 * Level one (Easy): Only addition is used with positive numbers.
 * Level two (Difficult): Only subtraction is used with positive numbers.
 * Level three (Expert): Addition and subtraction are used with positive and negative numbers.