It is important for students to develop automaticity with numbers. Practicing subtilizing for a minute or two a day can help with this.
I made this PowerPoint to help my Kinder intervention students. When you look at a die with 3 dots, you automatically know that it is a three. Students that do not yet subtilize will count each dot every time. This quick moving PowerPoint encourages them to recognize the number rather than counting.
I posted a video
of this in action on Instagram.