This research examined parents’ involvement in children’s math homework and activities. During 2017 to 2019, American parents (N = 483; 80% mothers; 67% white) of young elementary school children (Mage = 7.47 years; 50% girls) reported on their math helping self‐efficacy; they also reported on their involvement in children’s math homework and activities daily for 12 days. At this time and a year later, children’s math motivation and achievement were assessed. Parents’ involvement in homework (vs. activities) was more affectively negative (d = .34), particularly among parents low in self‐efficacy (d = .23). The more affectively negative parents’ involvement, particularly in homework, the poorer children’s later math motivation and achievement (βs = −.09 to .20).

A new parent‐report measure was used to examine parents' person and process responses to children's math performance. Twice over a year from 2017 to 2020, American parents (N = 546; 80% mothers, 20% other caregivers; 62% white, 21% Black, 17% other) reported their responses and math beliefs; their children's (Mage = 7.48 years; 50% girls, 50% boys) math adjustment was also assessed. Factor analyses indicated parents' person and process responses to children's math success and failure represent four distinct, albeit related, responses. Person (vs. process) responses were less common and less likely to accompany views of math ability as malleable and failure as constructive (|r|s = .16–.23). The more parents used person responses, the poorer children's later math adjustment (|β|s = .06–.16).