Here are resources that support Year 1 maths learning at home using videos to support parents and pupils. 

Home lessons project

http://www.iseemaths.com/home-lessons/

This page has daily maths activities for Years 1/2. Previous activities can be accesses and will be updated till the Easter break.

The project is explained here   https://www.youtube.com/watch?v=IU9pxlPscPU&feature=youtu.be

White Rose Maths lessons

https://whiterosemaths.com/homelearning/

These are video lessons based on topics within maths for each year group. They recommend one 20-30 minute session each day. Their team is online each day between 10.00 and 11.00am to share children's work and questions via social media.