In today’s world, more and more children and adults see a straight lower-case ‘k’ in the words that they read on phones, tablets and computers, in addition to those that they normally see on signs and labels, and in reading books. Our yellow background charts have a straight lower-case 'k', with the option to trace over the letter using a straight or rounded formation. Also, the sound-boxes are now numbered and contain an asterisk called the catch-all, as it ‘catches’ all the non-keyspellings that represent the same sound. Our older, more traditional, blue background charts have a rounded lower-case 'k' and the 44 sound-boxes do not have numbers or catch-alls.