If you need to translate your child's book you can download the Google Translate and hover your phone over the text and it will translate the text for you. 

If you need an online dictionary you can use https://www.focloir.ie/.

Where a sound file is available for a translation, it’s always provided in each of the three major dialects – Connacht, Munster and Ulster. Depending on which dialect you wish to hear, simply click on the letter C, M or U respectively, immediately beside the speaker icon.

Séidean Sí is a great programme and used in Gaelscoileanna. So if you are playing the games here maybe select levels lower than you class level.
Click on the link here https://www.seideansi.ie/#  Then click on ranganna to find your class level.
 

• Infants / Rang 1 https://ccea.org.uk/learning-resources/clar-luathleitheoireachta-cleite/cluichi-bhanda-1
• Rang 2/3/4 https://ccea.org.uk/learning-resources/clar-luathleitheoireachta-cleite/cluichi-bhanda-2
• Rang 5/6 https://ccea.org.uk/learning-resources/clar-luathleitheoireachta-cleite/cluichi-bhanda-3