Interactive workbooks containing practical exercises are often hosted on school-related portals such as NBS2.ru .
Learning how to "look inside" an object to show its internal structure. gdz po chercheniiu botvinnikov a.d 7-9 klass skachat
This textbook is the standard for technical drawing in Russian schools and covers everything from basic lines to complex 3D projections. gdz po chercheniiu botvinnikov a.d 7-9 klass skachat
Digital versions of the 2019 edition (and older) are available on educational repositories like Alleng.org . gdz po chercheniiu botvinnikov a.d 7-9 klass skachat