Supplementary materials to: Improving mathematics performance in 7-year-old children: Training the mapping from estimated quantities to Arabic digits

Supplementary materials to: Ferres-Forga, N., Halberda, J., Batalla-Ferres, A., & Bonatti, L. L. (2022). Improving mathematics performance in 7-year-old children: Training the mapping from estimated quantities to Arabic digits. Journal of Numerical Cognition, 8(1), 123–147. https://doi.org/10.5964/jnc.8075 The Supplementary Materials contain the following items: Math Tests: Two versions of each test were prepared, with different problems, so that pre- and post-training booklets were unique and counterbalanced across the sessions. Instructions to the teachers to guarantee the correct procedure during tests: The version in Catalan (original), and the version in English (translation). Results of the math tests from the 90 children. Access to training materials (computer games).