Ofsted Research Review - Mathematics (Ofsted, 2021). This review explores the literature relating to the field of maths education. Its purpose is to identify factors that can contribute to high-quality school maths curriculums, assessment, pedagogy and systems.
The NCETM have put together a valuable set of primary lessons (including teacher guides and powerpoints)
White Rose Maths provides access to a range of free and subscription resources from Early Years to Year 6
Elevate My Maths provides an online diagnostic assessment of trainees' maths skills. Trainees complete a carefully designed diagnostic assessment that identifies the key maths skills that need to be mastered, before assessing their level of mastery through a final assessment.
Mathematics Vocabulary List - Mathematics Mastery
Myths of Early Math - Clements and Sarama, 2018
Improving Maths in the Early Years and KS1 - Education Endowment Foundation