To practice the fundamentals of TensorFlow and to get started with neural networks with TensorFlow, the following is a video tutorial to follow.
Learn TensorFlow and Deep Learning fundamentals with Python (code-first introduction) :
Step 1/2: https://www.youtube.com/watch?v=tpCFfeUEGs8&t=14099s
Step 2/2: https://www.youtube.com/watch?v=ZUKz4125WNI
Note: For coding in these tutorials you may use Google Colab (https://colab.google/) mainly, but also, it's a crucial part to learn saving the code as a .py script and then execute them in a terminal to get the output.
Code on GitHub: https://github.com/mrdbourke/tensorflow-deep-learning/
When coding, you will have to widely check the TensorFlow Python documentation to check for the definitions, Args, etc. of the codes used in the tutorial (https://www.tensorflow.org/api_docs/python/tf).