Count on Hot Dots to bring learning with the Numberblocks to life anywhere, anytime. The Hot Dots interactive way of learning encourages children to learn independently and at their own pace. Hot Dots is easy to use – review the question and touch the tip of the interactive Hot Dots pen to a dot for immediate feedback. Select the correct answer and the pen glows green. The pen glows red for the incorrect answer. Press the audio button to incorporate fun Numberblocks sounds into the learning. The special edition Numberblocks Hot Dots pen is chunky and easy for little hands to hold, and has a rubberised, textured grip. The durable, spiral-bound Activity Book has over 100 activities featuring Numberblocks Eleven to Twenty. The content covers a range of early years maths activities including number recognition for 11–20, number order, matching, addition and subtraction, multiplication and division, comparing numbers, and problem-solving. Includes Numberblocks 11–20 Activity Book and interactive pen. Book measures 19cm L x 14cm W and the pen is 16cm L. After the learning fun is over, the book and interactive pen store inside the packaging which also has a convenient carrier handle. Pen requires 2 AAA batteries not included.