Great article to learn difference of tantrums and sensory meltdowns https://www.understood.org/en/learning-attention-issues/child-learning-disabilities/sensory-processing-issues/the-difference-between-tantrums-and-sensory-meltdowns?utm_source=pinterest&utm_medium=social&utm_campaign=understoodorg
OKAY short of telepathy this is the best way to talk to babies. We taught my younger brother sign language when he was a baby. We still use some of the signs, usually water and potty, especially in public.
This word building activity travel kit is perfect for toddlers and preschoolers for road trips and long car rides and you can customize it with sight words, color words, word families, or whatever your child is currently learning. Great for a summer learning activity.