The Museum of Natural History & Science welcomes all New Mexico residents for free on the first Sunday of each month with I.D. On Sunday, May 5th the museum will hold a Math Day celebration from 11-3pm in the STEM lecture hall for the National Math Festival www.nationalmathfestival.org The focus is robots in education. The museum will also have a hands-on family science workshop from 10:30 till 12pm for kids ages 2-9 years old. There is a suggested donation of $3 for the workshop.