The ANCWL came out in support of Basic Education Minister Angie Motshekga on Thursday following Sadtu's call for her and her director general Bobby Soobrayan to resign.
"She [Motshekga] has time and again shown her dedication and determination to see the children of South Africa receive a decent education," African National Congress Women's League spokeswoman Troy Martens said in a statement.
Motshekga is currently the leader of the league.
"[We are] 100 percent behind our president in her role as minister of basic education... the actions of [the SA Democratic Teachers' Union] are extremely disappointing and it is clear they do not take the education of our children seriously.
"It is evident their priority is not to be in the classroom with our children," Martens said.
On Wednesday, the Congress of SA Trade Unions (Cosatu) supported teachers' union's demands during protest marches to the Union Buildings in Pretoria and Parliament in Cape Town.
"If the government does not listen to the voices of the teachers today [Wednesday], we want to assure them that all of the members in Cosatu... will come and join you to make sure that we fix the problems in education," Cosatu Western Cape secretary Tony Ehrenreich said.
In Pretoria, thousands of teachers were bussed in from various provinces to take part in the march.
Protesters sang songs calling for Motshekga and Soobrayan to "voertsek [scram]" and "hamba [go]".
They also wielded placards reading: "Angie doesn't know anything", and "Away with declaring education an essential service".
The department said teachers who joined the protest marches would face disciplinary action and that the no-work, no-pay rule would apply.
Cosatu president Sdumo Dlamini cautioned Motshekga against the move.
"We are calling for the minister not to even think of that [punishment]. There is fire already, don't pour oil on the fire," he said in Pretoria.
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