The rug is worked using tapestry crochet technique. When you are about to change color, start your sc (the last before the color change) but complete it yarning over with the new color. Then work in sc the number of stitches needed in the new color crocheting around others yarn colors so you carry them along through your work. Repeat it for every color change.
The blanket is made with tapestry crochet technique. When you change color, finish the double crochet yarning over the new color. As you continue your project carry the baby green yarn by crocheting around it. For the other 3 colors work by square, leave the yarn as you change color, use Bobby pin to keep your yarn from unrolling and entangling . You can make 4 squares with each softly baby ice yarn.